Titik B(5,q) dilalui garis 6x-5y =60.

Titik B(5,q) dilalui garis 6x-5y =60 , maka

6x - 5y = 60
6(5) - 5q = 60
5q = 30 - 60
5q = -30
q = -6

6x-5y=60
-5y=-6x+60
m=6/5
m=y²-y¹/x²-x¹
6/5=q-0/0-5
6/5=q/-5
q=-6